package com.chen.springsecurity.config;

import com.chen.springsecurity.filter.JwtAuthenticationTokenFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

/**
 * @author Y·C
 * @version 1.0.0
 * @ClassName SecurityConfig.java
 * @Description TODO
 * @createTime 2023年08月28日 16:12:00
 */
@Configuration
//开启方法级别的权限控制
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {


    @Autowired
    private JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;

    @Autowired
    private AuthenticationEntryPoint authenticationEntryPoint;

    @Autowired
    private AccessDeniedHandler accessDeniedHandler;

    //创建BCryptPasswordEncoder对象注入到容器中
    @Bean
    public PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }


    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                //关闭csrf
                .csrf().disable()
                //不通过Session获取SecurityContext
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                // 对于登录接口 允许匿名访问
//                .antMatchers("/user/login").anonymous()
                .antMatchers("/user/login").permitAll()
                .antMatchers("/testCors").hasAuthority("system:dept:list")
                // 除上面外的所有请求全部需要鉴权认证
                .anyRequest().authenticated();
        //把token校验过滤器添加到过滤器链中 添加过滤器
        http.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);

        //添加自定义未授权和未登录结果返回
        http.exceptionHandling()
                //配置认证失败处理器
                .authenticationEntryPoint(authenticationEntryPoint).
                accessDeniedHandler(accessDeniedHandler);

        //允许跨域
        http.cors();
    }
    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
}
